code: def _DeserializeElwc(some_bytes):
      elwc_pb2 = input_pb2.ExampleListWithContext()
      elwc_pb2.ParseFromString(some_bytes)
      return elwc_pb2
  
file_path: tfx/tfx/extensions/google_cloud_big_query/experimental/elwc_example_gen/component/executor_test.py
imports: from unittest import mock
  import apache_beam
  from apache_beam.testing import util
  from google.cloud import bigquery
  import tensorflow
  from tfx.extensions.google_cloud_big_query import utils
  from tfx.extensions.google_cloud_big_query.experimental.elwc_example_gen.component import executor
  from tfx.extensions.google_cloud_big_query.experimental.elwc_example_gen.proto import elwc_config_pb2
  from tfx.proto import example_gen_pb2
  from google.protobuf import json_format
  from google.protobuf import text_format
  from tensorflow_serving.apis import input_pb2
label_desc: Use image node_id 2 for calling a global function with example usage: _DeserializeElwc(some_bytes) and returns: elwc_pb2